-96.39% is the change from 166 to 6
Calculation steps:
[( 6 - 166 ) ÷ 166] x 100 = -96.39%
Formula
Percentage change = [(6 - 166) / 166] x 100
Subtract the new number by the original number
6 - 166 = -160
-160 ÷ 166 = -0.963855421686747
-0.963855421686747 x 100 = -96.39%